1-Minute Smile Makeover Tricks

Stop snacking When you eat a large amount of food in one sitting, like during a typical meal, your mouth produces a lot of saliva, which helps to wash away the food particles that decay your teeth, says Dr. Pankaj P. Singh, founder and CEO of Arch Dental Associates in New York City. When you snack on smaller meals you don't produce as much saliva, which means your teeth aren't getting naturally cleaned as well, says the doctor.

In addition to that, most people snack on carbohydrate-rich foods. Chips, crackers, and other carb-laden foods are especially bad for our teeth, as "fermentable carbohydrates work with bacteria to begin the decay process and eventually destroy teeth," says Singh. "All carbohydrates eventually break down into simple sugars: glucose, fructose, maltose, and lactose," he says. "And when they do, they are converted by the bacteria in your mouth into plaque -- the primary trigger of gum disease and cavities." The snack food on Dr Singh's don't-eat list that shocked us most? Bananas. Their "chewy, adhesive texture" makes it easier for them to get caught between teeth or under the gum line, where bacteria can accumulate.

There are so many things that I never even considered might be affecting my teeth. I am a diet coke girl and I have no desire to quit drinking it. I hear drinking through a straw is better for your teeth than drinking straight from the can.